公开(公告)号：US20220390561A1

公开(公告)日：2022-12-08

申请号：US17870566

申请日：2022-07-21

Applicant: Aurora Operations, Inc.

Inventor： Zeb Barber ,  Randy Reibel ,  Devlin Baker ,  Emil Kadlec

IPC: G01S7/484 ,  G01S7/481 ,  G01S17/26 ,  G01S17/58 ,  G01S17/931 ,  G01S17/34

Abstract: In some implementations, a light detection and ranging (LIDAR) system includes a laser source configured to provide an optical signal at a first signal power, an amplifier having a plurality of gain levels, at which the amplifier is configured to amplify the optical signal, and one or more processors. The one or more processors are configured to, based on the first signal power and a duty cycle of the optical signal, vary a gain level of the amplifier from the plurality of gain levels to generate a pulse signal, transmit the pulse signal from the amplifier to an environment, receive a reflected signal that is reflected from an object, responsive to transmitting the pulse signal, and determine a range to the object based on an electrical signal associated with the reflected signal.

公开(公告)号：US20220381878A1

公开(公告)日：2022-12-01

申请号：US17684952

申请日：2022-03-02

Applicant: Aurora Operations, Inc.

Inventor： Stephen Crouch ,  Chunshu Li

IPC: G01S7/35 ,  G01S13/931 ,  G01S13/36

Abstract: Time-division quadrature sampling may be used in a pulse-modulated continuous wave (PMCW) radar receiver circuit, e.g., as may be employed in various types of radar sensors used in automotive and other applications, to enable a quadrature sampling circuit to sequence between digitally sampling different complex components of a received radar signal at different times.

公开(公告)号：US20220308580A1

公开(公告)日：2022-09-29

申请号：US17832359

申请日：2022-06-03

Applicant: Aurora Operations, Inc.

Inventor： Ethan Eade ,  Nathaniel Gist, IV ,  Thomas Pilarski

IPC: G05D1/00 ,  G05D1/02

Abstract: An autonomous vehicle uses a secondary vehicle control system to supplement a primary vehicle control system to perform a controlled stop if an adverse event is detected in the primary vehicle control system. The secondary vehicle control system may use a redundant lateral velocity determined by a different sensor from that used by the primary vehicle control system to determine lateral velocity for use in controlling the autonomous vehicle to perform the controlled stop.

公开(公告)号：US20220289212A1

公开(公告)日：2022-09-15

申请号：US17536989

申请日：2021-11-29

Applicant: Aurora Operations, Inc.

Inventor： Anuranga Sajith Gunaratne

IPC: B60W50/023 ,  B60W50/02 ,  B60W60/00 ,  B60R16/023

Abstract: A control system for a vehicle includes a time sensitive network switch and one or more processors. The time sensitive network switch is configured to receive sensor data from light detection and ranging (LIDAR) sensors, radio detection and ranging (RADAR) sensors, or image sensors. The sensor data is representative of estimated objects that are in an external environment of the autonomous vehicle. The one or more processors are configured to receive the sensor data and determine instructions to control movement of the autonomous vehicle at least partially based on the sensor data from the time sensitive network switch and at least partially based on map data.

公开(公告)号：US11415673B1

公开(公告)日：2022-08-16

申请号：US17535013

申请日：2021-11-24

Applicant: Aurora Operations, Inc.

Inventor： Sen Lin ,  Andrew Steil Michaels

IPC: G01S7/48 ,  G01S7/481 ,  G01S17/931

Abstract: A structure of a silicon photonics device for LIDAR includes a first insulating structure and a second insulating structure disposed above one or more etched silicon structures overlying a substrate member. A metal layer is disposed above the first insulating structure without a prior deposition of a diffusion barrier and adhesion layer. A thin insulating structure is disposed above the second insulating structure. A first configuration of the metal layer, the first insulating structure and the one or more etched silicon structures forms a free-space coupler. A second configuration of the thin insulating structure above the second insulating structure forms an edge coupler.

公开(公告)号：US20220237410A1

公开(公告)日：2022-07-28

申请号：US17720645

申请日：2022-04-14

Applicant: Aurora Operations Inc.

Inventor： Carl Magnus Wrenninge

IPC: G06K9/62

Abstract: A method and system for synthetic data generation and analysis includes generating a synthetic dataset. A set of parameters is determined and scenarios are generated from the parameters that represent three-dimensional scenes. Synthetic images are rendered for the scenarios. A synthetic dataset may be formed to have a controlled variation in attributes of synthetic images over a synthetic dataset. The synthetic dataset may be used for training or evaluating a machine learning model.

公开(公告)号：US11358547B2

公开(公告)日：2022-06-14

申请号：US16826685

申请日：2020-03-23

Applicant: Aurora Operations, Inc.

Inventor： Cameron David Christie ,  Anuranga Sajith Gunaratne

IPC: G01S17/87 ,  B60R16/03 ,  G05D1/00 ,  B60R16/02 ,  G06V20/56 ,  H04L12/40 ,  H04L12/46 ,  G01S13/87 ,  H04L67/12

Abstract: A system for an autonomous vehicle includes sensors, a time sensitive network switch, and a sensor interface. The sensors are configured to generate sensor data. The time sensitive network switch is configured to receive the sensor data and an elevated voltage.

公开(公告)号：US20220172371A1

公开(公告)日：2022-06-02

申请号：US17674449

申请日：2022-02-17

Applicant: Aurora Operations, Inc.

Inventor： Ethan Eade ,  Michael Bode

IPC: G06T7/12 ,  G06T7/162 ,  G06F16/28 ,  G06F16/29 ,  G01C21/32 ,  G01C21/00 ,  G01C21/20

Abstract: A relative atlas graph is generated to store mapping data used by an autonomous vehicle. The relative atlas graph may be generated for a geographical area based on observations collected from the geographical area, and may include element nodes corresponding to elements detected from the observations along with edges that connect pairs of element nodes and define relative poses between the elements for connected pairs of element nodes.

公开(公告)号：US20220146643A1

公开(公告)日：2022-05-12

申请号：US17584169

申请日：2022-01-25

Applicant: AURORA OPERATIONS, INC.

Inventor： Zeb William Barber ,  Stephen C. Crouch ,  Ryan Moore Galloway ,  Edward Joseph Angus ,  Emil Kadlec

IPC: G01S7/481 ,  G01S17/931 ,  G02B26/10

Abstract: A LIDAR system includes a laser source, a first scanner, and a second scanner. The first scanner receives a first beam from the laser source and applies a first angle modulation to the first beam to output a second beam at a first angle. The second scanner receives the second beam and applies a second angle modulation to the second beam to output a third beam at a second angle.

公开(公告)号：US20220024487A1

公开(公告)日：2022-01-27

申请号：US17494188

申请日：2021-10-05

Applicant: AURORA OPERATIONS, INC.

Inventor： Stephen CROUCH ,  Zeb Barber ,  Emil KADLEC ,  Ryan Galloway ,  Sean Spillane

IPC: B60W60/00 ,  G01S7/481 ,  G01S17/931 ,  G01S17/58 ,  G01S7/4912 ,  G01S17/34

Abstract: An autonomous vehicle control system includes one or more processors. The one or more processors are configured to cause a transmitter to transmit a transmit signal from a laser source. The one or more processors are configured to cause a receiver to receive a return signal reflected by an object. The one or more processors are configured to cause one or more optics to generate a first polarized signal of the return signal with a first polarization, and generate a second polarized signal of the return signal with a second polarization. The one or more processors are configured to calculate a value of reflectivity based on a signal-to-noise ratio (SNR) value of the first polarized signal and an SNR value of the second polarized signal. The one or more processors are configured to operate a vehicle based on the value of reflectivity.